Utility-scale ground-mount arrays represent some of the largest solar assets in the world. Often spanning hundreds of hectares in remote, arid, or coastal zones, keeping millions of modules clean is a massive logistics task. Traditional manual cleaning methods cannot keep pace with the rapid accumulation of sand, salt spray, or bird droppings. The shear scale of utility O&M requires specialized row-level and gantry-level robotic automation.
A 100 MW ground-mount farm may cover hundreds of hectares with millions of square metres of panel surface. Manual or distributed robot cleaning cannot keep pace — only high-throughput row-level systems maintain acceptable cleaning frequency.
Ground-mount farms in arid regions — deserts, semi-arid plains, coastal zones — accumulate sand, mineral dust, and bird droppings at rates that cut efficiency by 25–35% within weeks between cleans.
Fixed-tilt utility arrays span 0° to 60°. Single-axis tracker rows shift throughout the day. Cleaning systems must handle the full angular range without repositioning or manual adjustment between rows.
Utility farms are often located far from urban infrastructure. Equipment must be robust enough for off-road terrain, self-contained for extended operation, and simple enough for on-site O&M staff to deploy without specialist support.

Removing dense sand and mineral crusts restores light transmission, directly reversing the 25–35% dust-related power degradation and stabilizing grid output.

Covering up to 5,000 m²/h, automated robots clean thousands of modules in a single shift, reducing O&M cycle times dramatically compared with manual O&M teams.

Our robotic systems integrate seamlessly with tracker stowing schedules, cleaning panels at the optimal flat tilt angles during morning or evening stow periods.

Featuring long battery runtimes, rugged aluminum structures, and dry-brush capability, our robots function autonomously in remote, water-scarce desert environments.
Weijiang provides high-efficiency row-level and gantry systems engineered to handle massive centralized ground-mount projects.


Our heavy-duty utility systems are proven in massive solar installations globally:









Standard utility arrays (0°–40°), where the JR-2000 cleans each row autonomously and the LM gantry sweeps block sections at 5,000 m²/h.

The LM gantry adapts to tracker angles dynamically, while the JR-2000 is deployed at morning/evening flat-stow positions for row-by-row cleaning.

The JR-2000 is deployed from floating maintenance walkways on reservoirs and lake sites. It is IP65 rated for wet-wash O&M.

Off-road LM gantry systems navigate dry sandy paths. High-frequency dry cleaning cycles are essential to avoid 25–35% monthly dust penalties.

Customized water-tank robots designed for flat Fresnel reflectors and parabolic trough mirrors.

Remote fleet monitoring and standardized O&M protocols allow companies to manage robots across multiple solar projects under unified service contracts.
Eliminates severe sand and dust soiling that degrades MW yields by up to 35%.
Cleans solar arrays up to 10× faster than manual O&M crews.
Reduces crew mobilization, water logistics, and manual O&M safety costs.
IP65 protection and off-road mobility ensure consistent operation in remote desert settings.